Hypodermic ampoule for direct injection



Nov. 22, 1955 M. BERTHIOT HYPODERMIC AMPOULE FOR DIRECT INJECTION FiledJuly 30, 1954 mmswraz M44422 flier/rm? United States Patent Ofiice2,724,384 Patented Nov. 22, 1955 HYPODERMIC AMPOULE FOR DIRECT 1W5ECTEQN Marcel Berthiot, Paris, France Application July 30, 1954, SerialNo. 446,699

4 Claims. (Cl. 128216) The present invention is concerned with anampoule for direct injection which allows to practice intramuscular andintravenous hypodermic injections without the use of a separate syringeand without sterilization other than the one made when manufactured.

This device is then most useful in every circumstances where solitude orabsence of usual supply do not allow to obtain a syringe, or even havingthe syringe, there is an impossibility of sterilization. It shall be toomost useful in case of emergency, in long voyages, far away residence orexplorations, in case of great widespread of epidemic diseases, in caseof war, etc.

The ampoule according to the invention is distinguished by the fact thatthe needle and the medicine (drug or solution) to be injected areenclosed in the sealed ampoul-e, a disc made of plastic material used asneedleholder is set in the front part of the ampoule, and forwarehousing and transport, the point of the needle only hardly emergesfrom the frontward surface of the disc, a special design permits afterthat the forward part of the ampoule has been cut-elf (or removed) inits usual way, to push the needle towards the forepart through the discand emerge completely, thus permitting the injection and allowing theevacuation of the medicine to be injected from the ampoule through theneedle.

The ampoule may be made of plastic material; in this case it is dividedin two parts separated by a bottleneck; by an outward action the needlemay first be brought forth in its position of use, then the medicine tobe injected in the part of the ampoule before the bottleneck which mustthen be obturated and finally expel the medicine from the ampoulethrough the needle.

The drawing in annex gives an idea of a possible manufacture of theactual invention.

The ampoule 16 made of plastic material of polyethylene as example, hasthe appearance of a test tube with a bottleneck 17 at its third of itslength.

After having placed in the ampoule thus manufactured the medicine 18 tobe injected, the needle-carrier disc 19 is introduced at thetop of thetube made, as for the glass ampoule, of a thick disc of plastic materialwith a canal in which is set with a soft friction a needle 20 made ofstainless steel having a large flat head 22.

The needle-carrier disc 19 is much thicker than the glass ampoulebecause it forms for the operator the reliable point of support to beheld between the fingers when the injection is made.

The disc having been set in its place, it is hot soldered to the side ofthe tube 16. it is then recovered by a cap 21 made of polyethylene whichis soldered to the tube.

The ampoule thus manufactured may be sterilized at C.

To make the injection, the medicine is squeezed through the bottleneckin the part opposite the needle, the ampoule is bent at the necessaryangle so as to place the forefinger on the flat head 22 of the needle20, the needle-carrier disc 19 of the ampoule is firmly held between thethumb and middlefinger, the needle is completely pushed out with theforefinger through the polyethylene cap 21, the stopper 13 avoids anyuntimely recoil of the needle after that it has been pushed through thedisc 19.

The skin or the muscle is pricked, the ampoule is straightened to allowthe medicine to flow towards the needle, the rear part of the ampouleemptying itself completely, the bottleneck is then grasped with the handor better with a pair of pliers and twisted completely to expel themedicine.

What I claim is:

1. An ampoule for direct injection allowing intramuscular andintravenous hypodermic injections without the use of a syringe andwithout sterilization other than the one made when manufactured,comprising an envelope made of plastic material divided into two parts,a front part and a rear part, separated by a bottleneck, a needle andthe medicine to be injected enclosed inside the envelope, a disc ofplastic material used as needlecarrier set in the front part of theampoule near its forward end, the point of the needle hardly emergingfrom the forward surface of the disc, for warehousing and transport, aspecial design permitting for its use to push out the needle through thedisc so that it emerges completely to make the injection and allow themedicine to be injected out of the arnpoule through the needle.

2. An arnpoule according to claim 1, comprising a cap made of plasticmaterial enclosing the forward end of its front part.

3. An ampoule according to claim 1, the needle of which bears on itsrear part a large flat head capable of being used as a pusher.

4. An ampoule according to claim 1, the needle of which has a stopperavoiding any untimely recoil when the needle is ready for use.

References Cited in the file of this patent FOREIGN PATENTS 459,668Germany May 9, 1928

1. AN AMPOULE FOR DIRECT INJECTION ALLOWING INTRAMUSCULAR ANDINTRAVENOUS HYPODERMIC INJECTIONS WITHOUT THE USE OF A SYRINGE ANDWITHOUT STERILIZATION OTHER THAN THE ONE MADE WHEN MANUFACTURED,COMPRISING AN ENVELOPE MADE OF PLASTIC MATERIAL DIVIDED INTO TWO PARTS,A FRONT PART AND A REAR PART, SEPARATED BY A BOTTLENECK, A NEEDLE ANDTHE MEDICINE TO BE INJECTED ENCLOSED INSIDE THE ENVELOPE, A DISC OFPLASTIC MATERIAL USED AS NEEDLECARRIER SET IN THE FRONT PART OF THEAMPOULE NEAR ITS FORWARD END, THE POINT OF THE NEEDLE HARDLY EMERGINGFROM THE FORWARD SURFACE OF THE DISC, FOR WAREHOUSING AND TRANSPORT, ASPECIAL DESIGN PERMITTING FOR ITS USE TO PUSH OUT THE NEEDLE THROUGH THEDISC SO THAT IT EMERGES COMPLETELY TO MAKE THE INJECTION AND ALLOW THEMEDICINE TO BE INJECTED OUT OF THE AMPOULE THROUGH THE NEEDLE.